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Probiotics and prebiotics in poultry nutrition
Under normal circumstances, there is a delicate balance of beneficial and pathogenic bacteria in the gastrointestinal tract (GIT). This is influenced by symbiotic and competitive interactions and relationships. The microbial communities will not only protect the GIT but also enhance productivity in the host. The use of probiotics and prebiotics are two approaches that have been examined and can potentially reduce enteric diseases in poultry and also enhance their productivity. These substances have been proposed to assist in the prevention of carcass contamination and improve the immune response in the chicken. Probiotics have been defined as 'a live microbial feed supplement which beneficially affects the host animal by improving its intestinal balance' (Fuller, 1989). The probiotic mode of action is by 'competitive exclusion', meaning there is competition for attachment sites in the GIT.
INTRODUCTION Avian coccidiosis is a global parasitic disease characterized with heavy health and economic impacts. Control of this disease is based essentially on chemoprevention using coccidiostats additives and more recently on immunization. Vaccine efficacy is variable and may in some circumstances be restricted, which led to the development of novel protocols that would improve vaccination effectiveness (Allen et...
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This study was conducted to assess the effects of different short-term water-soluble probiotic application methods (PAM), by a probiotic containing Enterococcus faecium, to reduce probiotic application cost with 2 types of diet (TOD) on performance, carcass characteristics, serum lipids, jejunal histomorphology, cecal microflora population and immune responses in broiler chickens. Five hundred sixty day-old male Ross 308 chicks were randomly distributed in a...
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1 Department of Poultry Science, University of Arkansas, Fayetteville, USA; 2 Vetanco Argentina S.A. Chile 33 (B1603CMA) Vicente López, Buenos Aires, Argentina; 3 Departamento de Medicina y Zootecnia de Aves, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, México City, México; 4 Pacific Vet Group-USA, Inc., Creek...
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Introduction For several decades, the use of sub-therapeutic levels of antibiotics in animal feeds has been a common practice in many countries in order to improve growth performance and prevent from the adverse effects of pathogenic and non-pathogenic enteric microorganisms. However, there are increasing concerns for the public health about the consequences from the use of antibiotics in livestock [1]. The risk of...
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At a time when sustainability and antibiotic reduction are major concerns for the international animal production sector, Probiotics have never been such a topical issue. Willing t o stimulate and promote probiotic research, the European Probiotic Association (EPA) is preparing to nominate the 2014 Jules Tournut Probiotics Prize Winner, who will be announced during EUROTIER in Hannover, on November 12 th , 2014. Members of the...
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David Harrington from Chr. Hansen speaks about his two presentations about the inclusion of the product GalliPro in broiler diets to enhance performance. ...
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Sangita Jalukar Ph. D., Product Development & Research Coordinator at Vi-COR speaks about the use of prebiotics in poultry at the Latin American Poultry Congress 2013, El Salvador. ...
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Introduction The objective of this presentation is to discuss the role of dietary enzymes in the production of hydrolysis products that are important for animal health and food safety in the antibiotic-free poultry and swine nutrition. This presentation would also address any potential relationship between feed enzymes and yeast-derived products with the emphasis on the development of new enzyme supplements effective in...
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1. Introduction The poultry industry has become an important economic activity in many countries. In large-scale rearing facilities, where poultry are exposed to stressful conditions, problems related to diseases and deterioration of environmental conditions often occur and result in serious economic losses. Prevention and control of diseases have led during recent decades to a substantial increase in the use of veterinary medicines. However, the...
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Introduction Feed additives are popular for their diverse activity via different modes of action. Probiotics as feed additives are currently widely utilized in order to modify the microbial population in the digestive tract. According to FAO probiotics are live microorganisms which when administered in adequate amounts confer a health benefit on the host. They require several days to...
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*Poultry Science Department, University of Arkansas, Fayetteville 72701; †Poultry Production and Product Safety Research Unit, Agricultural Research Service, USDA, Fayetteville, Arkansas 72701; ‡Poultry Science Department, Texas A&M University, College Station 77843 Publication Date: 2007 Poultry Science 86:921–930 ABSTRACT ...
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*Poultry Production and Product Safety Research Unit, Agricultural Research Service, United States Department of Agriculture, Fayetteville, Arkansas 72701 †Department of Poultry Science, University of Arkansas, Fayetteville, Arkansas 72701 Publication Date: 2005 Poultry Science 84:1092–1100 ...
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Introduction The amino acid glutamine (Gln) is traditionally considered as a non-essential amino acid. However, several researches has shown that Gln may be a conditionally essential amino acid in maintaining gut integrity and reducing inflammation [1-5]. Glutamine-enriched diets have been linked with favorable intestinal effects including maintenance of gut barrier function and enterocyte differentiation [6]. Glutamine has also been the focus of...
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Bacillus amyloliquefaciens CECT 5940 (Ecobiol®) expresses quorum quenching activity
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Justin Tan, Biomin Regional sales & marketing Director, talks about Biomin products such as poultry prebiotics....
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INTRODUCTION Prebiotics are products containing carbohydrates, which main component is mannose. These products are commonly use to reduce the colonization of the intestinal tract by enteropathogenic bacteria. Probiotics are mainly represented by mannanoligosaccharides (MOS) and fructo-oligosaccharides (FOS), present in the cell wall of yeasts, such as Saccharomyces cerevisiae. They exert their action by maintaining or reestablishing the conditions...
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INTRODUCTION Salmonellosis account for a severe problem of public health both in developing and developed countries and several controlling mechanisms of such pathogen have been applied to poultry production (Cardoso and Carvalho, 2006). The inhibition effect produced by probiotics on the population of pathogenic enterobacteria such as Salmonella through the competitive...
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Introduction
Currently, Brazil occupies a prominent place in the production of broiler chicken and is the third largest producer and the largest exporter of chicken in the world. To achieve this position, it took great efforts to increase productivity and biosecurity on farms, with the aim of satisfying the quality required by both the internal and external markets. Thus, the control of...
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Introduction Since January 2006, there is a total banning of antibiotic growth promoters (AGP) in animal feeding in the European Union (EU). Despite being a controversial subject because there is both, information for and against it, the Scientific Steering Committee of the European Commission proposed a ban on AGP based on the "precautionary principle". As of 2012 the use of salinomycin and monensin will also be...
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Poultry infected with the parasite Eimeria maxima usually develop avian coccidiosis, a disease estimated to cost producers globally more than $1.2 billion every year. So Agricultural Research Service (ARS) immunologist Hyun Lillehoj has been working with colleagues in ARS and around the world to find dietary supplements that strengthen the poultry immune system.
Lillehoj, at the ARS Animal Parasitic Diseases Laboratory in Beltsville, Md., cooperated on the research with...
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